Barrois · about 3 km from Ancerville
Source des Clefmonts (Pont de la Grotte)
- Max depth3 m
- CertificationFull cave
- SpecialSidemount
Diving and fills
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The dive
Beyond the sump you wade ~200 m to a small pebble beach. Then come a low ~150 m crawl and a passage 2–3 m wide and 3–4 m high with two small cascades.
1 earlier accident or incident has been reported at this cave. Read what happened ↓
Profile and sections
Beyond the sump you wade ~200 m to a small pebble beach. Then come a low ~150 m crawl and a passage 2–3 m wide and 3–4 m high with two small cascades. Visibility and temperature are not published.
The spring is also called the résurgence du Pont de la Grotte. Belgian cave divers explored it in 1987–1993; the data are from 1994.
- Depth and profile
- Sump 700 m, max -3 m, with two dead-end air bells at 90 and 190 m and, around 400 m, a section that almost reaches the surface (no way out). Beyond: ~850 m of main passage plus side branches of ~500 and ~250 m: ~2,300 m in total.
- Configuration
- Irregular and winding to 400 m, then almost straight: sidemount. Backmount/CCR: not described (estimate).
- DPV: Not DPV-suitable (estimate)
- Shallow, winding sump with air bells: no scooter (estimate).
Who can dive where
- At least Full cave
- Configurations: Backmount / twinset / Sidemount / CCR / Small cylinders / no-mount (speleo sumps)
- Goes down to 3 m (trimix or deco may be needed)
- Experienced divers only
This is how the planner decides who in your team may dive this cave. Rules your own trip adds (organizer, a mail, the AI) show with your trip.
How to get there
Spring in the Marnaval district of Saint-Dizier. The entrance was closed with a gate; it was still there in 1993, although the town had reportedly bought the site for a public garden and the gate was due to go. A later text still mentions the gate. Ask the town of Saint-Dizier or the ASHM beforehand who holds the key.
Around Source des Clefmonts (Pont de la Grotte)
FillsNo fill station known nearby
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News
All (1)
Accidents and incidents
What happened at this cave before, with the sources. No names are given; read it as a lesson for your own planning.
- Unstable rubble and pebble slopes at the entrance. In June 1967 the rubble slid shut behind a diver after he had passed a squeeze with his kit off; he had to dig a way out and surfaced almost out of air.
Access and rules change: check what applies locally right before your trip. Source: GDELT Project and the news feeds of diving magazines. Search for more news ↗ Searched automatically, last on 13 Nov 2026.
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